1.
Telescopic lenses and instruments are used to make things seem larger and nearer, and are usually longer than others of the same type.
...a sporting rifle fitted with a ~ sight.
ADJ: usu ADJ n
2.
A ~ object is made of cylindrical sections that fit or slide into each other, so that it can be made longer or shorter, for example to save space when it is not being used.
...this new lightweight ~ ladder.
ADJ: usu ADJ n